https://www.pcr.ugent.be/Publications/artikelsPCR/Progress%20in%20polymer%20science/TalhaGokmen2011.pdf

Porous Polymer Particles - A Comprehensive Guide to Synthesis, Characterization, Functionalization and Applications

A collision avoidance system including a control module, a first transmitting device connected to the control module, wherein the first transmitting device transmits a signal, a first receiving device connected to the control module, wherein the first receiving device receives a return of the signal transmitted from the first transmitting device and transmits a first return signal representative of the return to the control device, a second transmitting device connected to the control module, wherein the second transmitting device transmits a signal, and a second receiving device connected to the control module device, wherein the second receiving device receives a return of the signal transmitted from the second transmitting device and transmits a second return signal representative of the return to the control device, wherein the control module includes measurement circuitry used to measure the first and second return signals and display means for displaying a transverse location of an object as a function of said first and second return signals.

System and method of avoiding collisions

The present invention relates to porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead communicate with the surface of the microbead. The present invention also relates to a process for producing a porous, crosslinked polymeric microbead as well as the product of this process. This process involves combining an oil phase with an aqueous discontinuous phase to form an emulsion adding the emulsion to an aqueous suspension medium to form an oil-in-water suspension of dispersed emulsion droplets, and polymerizing the emulsion droplets to form microbeads. At least 10 % of the microbeads produced in accordance with the present invention are substantially spherical or substantially ellipsoidal or a combination of the two.

Polymeric microbeads and method of preparation

A drug delivery particle including a reservoir region having primarily large pores and a metering region. The particle can be highly spherical.

Drug delivery particle

Dental appliances for producing corrective movement in a subject's teeth include dental aligners which may be worn on a subject's teeth, gingiva or other region of the oral cavity. Described herein are dental appliances that include features that enhance the performance and comfort of the appliance, including features for preventing damage or wear on the appliance. Described herein are fluid-permeable aligners, wrinkled aligners, modular aligners, aligners of varying thickness, aligners of varying stiffness, snap-on aligners, textured aligners, aligners having multiple layers, and lateral correction aligners. Methods of making and using such aligners are also described.

Variations of dental aligners

The present invention relates to porous crosslinked polymeric microbeads having cavities joined by interconnecting pores wherein at least some of the cavities at the interior of each microbead communicate with the surface of the microbead. The present invention also relates to a process for producing a porous, crosslinked polymeric microbead as well as the product of this process. This process involves combining an oil phase with an aqueous discontinuous phase to form an emulsion, adding the emulsion to an aqueous suspension medium to form an oil-in-water suspension of dispersed emulsion droplets, and polymerizing the emulsion droplets to form microbeads. At least 10% of the microbeads produced in accordance with the present invention are substantially spherical or substantially ellipsoidal or a combination of the two.

Naotaka Kitagawa

Papers

Polymeric microbeads and method of preparation

Methods of preparing polymeric microbeds